Hi I have Pro version. But how can I set TS with decimal numbers 0,12 ? I can use only full numbers without comma :/

It is not possible to set a decimal number. But you do not have to. All inputs for the TrailingStop function are in pips. Means if you use EURUSD for example and the TrailingStop to 25, it would be 0.0025 (or 0.00250 for a 5 digits broker).